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From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Tue, 12 Jan 2021 05:36:16 -0800
Message-ID: <CAMe9rOrAbS7Jbv0nKTh6RgniM2WvBSUx6a9Dj9O357Woe49SfA@mail.gmail.com>
Subject: Re: [PATCH] Implement a workaround for GNU mak jobserver
To: Nick Clifton <nickc@redhat.com>
Cc: Binutils <binutils@sourceware.org>
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On Tue, Jan 12, 2021 at 5:26 AM Nick Clifton <nickc@redhat.com> wrote:
>
> Hi H.J.
>
> >> since the '+' is missing on the recipe line in Makefiles generated by
> >> automake.  Add the '+' to the recipe line by hand.
>
> Is this an automake bug that ought to be reported ?

Yes

https://lists.gnu.org/archive/html/automake/2020-02/msg00012.html

But my automake patch was rejected because automake developers
believe that the choice of adding '+" belongs to package builders, not
package developers.

> >> bfd/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >>
> >> binutils/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >>
> >> config/
> >>
> >>          PR binutils/26792
> >>          * jobserver.m4: New file.
> >>
> >> gas/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >>
> >> gprof/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >>
> >> ld/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >>
> >> libctf/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >>
> >> opcodes/
> >>
> >>          PR binutils/26792
> >>          * configure.ac: Use GNU_MAKE_JOBSERVER.
> >>          * aclocal.m4: Regenerated.
> >>          * configure: Likewise.
> >
> > I have checked the PGO/LTO build patches into master branch.   Here
> > is the updated patch to enable LTO jobserver with GCC 11.
> >
> > OK for master?
>
> Approved - please apply.
>

I will check it in shortly.

Thanks.

-- 
H.J.